relay driving circuit

Discussion in 'The Projects Forum' started by ammar shamsi, Jun 6, 2010.

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  1. ammar shamsi

    Thread Starter New Member

    Jun 6, 2010
    i m working on a project for that i need to operate a 12v relay by main AC in the range of 140V to 310V, (prefered without step down transformer) .i havtried some circuit but they break down when main reaches 270v-280v .plz solve my query 2 crop m out that problem.
  2. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    Post your circuit or are you connecting the 12V relay directly to the mains?

    Direct connection to the mains is highly discouraged as a safety issue and a potential fire hazard.
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    We do not discuss such circuits - there is no way to make them safe to use.
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